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Effects of LED and HPS lighting on the growth, seedling morphology and yield of greenhouse tomatoes and cucumbers

Horticultural science (Praha), 2021-01, Vol.48 (1), p.22-29 [Peer Reviewed Journal]

2021. This work is published under https://www.agriculturejournals.cz/web/about/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;ISSN: 0862-867X ;EISSN: 1805-9333 ;DOI: 10.17221/4/2020-HORTSCI

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  • Title:
    Effects of LED and HPS lighting on the growth, seedling morphology and yield of greenhouse tomatoes and cucumbers
  • Author: Dyśko, Jacek ; Kaniszewski, Stanisław
  • Subjects: artificial lighting ; Chlorophyll ; Cucumbers ; Lamps ; Light emitting diodes ; Lighting ; Morphology ; plant growth ; Radiation measurement ; Seedlings ; Sodium channels (voltage-gated) ; Solar power ; Solar radiation ; Tomatoes ; Transplants ; Vegetables ; Yield
  • Is Part Of: Horticultural science (Praha), 2021-01, Vol.48 (1), p.22-29
  • Description: In an experiment with tomato and cucumber transplants, light units equipped with purpose-built LED arrays were compared with HPS sodium lamps with a power of 600 W and a voltage of 230 V. For both the LED and HPS lamps, the same PAR radiation level was used at the plant height, which was about 70–80 μmol/m2/s in conditions without daylight. The supplementary lighting was carried out for 8 to 24 hours and was switched on during the day when the solar radiation outside the greenhouse was lower than 200 W/m2. The supplementary lighting with the LED and HPS lamps did not have a significant impact on the growth of the tomato and cucumber seedlings and the fresh and dry mass of the tomato and cucumber plants. The plants grown without the additional artificial lighting were significantly smaller in height, had fewer leaves, a smaller spread and produced lower fresh and dry weights. The tomato and cucumber plants grown under the LED lamps had a higher chlorophyll index than those grown under the HPS lamps and without any lighting. The supplementary lighting with the LED lamps increased the early yield of the tomatoes compared to the HPS and control plants but has no effect on the early yield of the cucumbers. Both the LED and HPS lighting significantly increased the total and marketable yield of the tomatoes and cucumbers.
  • Publisher: Prague: Czech Academy of Agricultural Sciences (CAAS)
  • Language: English;Czech;Slovak
  • Identifier: ISSN: 0862-867X
    EISSN: 1805-9333
    DOI: 10.17221/4/2020-HORTSCI
  • Source: ProQuest Central
    DOAJ Directory of Open Access Journals

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